Thanks. I looked back over my history with this car and found my 6-8 fastest runs had very close to this jet set-up. There have been times in cooler weather or at low altitude that I have been able to pickup by running slightly higher, but in general this has worked fairly well in the past.

I always carry a full set of jets, but never been very good with the quick change tool from Holley. Find it easier just to drop the bowls and switch them that way.

Thanks, I certainly need to look into beefing up the suspension a bit.
I did weld in frame connectors, and I am running a solid motor plate in the front part of my engine, 90/10 drag shocks, stock springs and a pinion snubber.
I will research the Caltracs. Probably need them or at a minimum SS Springs. I am wanting to get the front wheels up pretty good and I have heard stories of B-Bodies twisting so bad they pop the windshields out.

I have debated alcohol and even E-85. Both are interesting options. I run a pretty small fuel cell, and switching to alcohol would probably require me to increase the size of it. I am about to upgrade my fuel lines to braided steel, and maybe after I get the fuel system completely updated I might try to play with the fuel. Been running about 114 Octane racing gas. Now that it is $11/gallon or more, I might look at other options. Thanks for the suggestion.

Like Don (B3422w5) said, I'd put on the heads you already have. Get whatever headers you need to make em fit. With the current combo, I think a 1 7/8" header would be better, but if 2" is all that will fit, then so be it.
Also get a better intake manifold. Like fast68 said, an M1 or even a Holley SD would be better. I had a similar combo years ago and the Holley SD w/ the 4500 adapter was faster than the 4500 flange Team G.
Honestly I'm surprised your car isn't faster for what it is.

What is your compression only reason I asked is a friend tried. 114 last year and his car slowed down, he only has about 12.1 compression so lower octane might be something to try to

Yeah, e85 is only about $2/gal....If you are paying $11/gal now and e85 swap would pay for itself in 1 race season (no joke). I made the move to e85 quite a few years ago. If I recall correctly I picked up 1.5 tenths in the 1/4 mile going to e85.

I switch to pump E85 6 or 7 years ago on my S/P bracket car, that fuel is way more consistent than any other gas or race gas I've used, my S/P car now doesn't vary more then .003 ET in the 1/8 mile from the first run in the morning to the last run in the heat of the afternoons here in central Oregon
My other cars would vary a lot more than that on gas depending on the weather change, some times as much as .015 \
I pay from 3.75 up to 4.20 a gallon at the pump, they sell VP race gas also and the cheapest on, lowest octane, is over $10.00 a gallon
E 85 doesn't go bad in the jugs either when sitting, winter or summer

sorry, did not read the whole thread.....but did you consider going to another Rocker Ratio? If you use 1.5s maybe you can find a good used set in 1.6 ratio, they´re around and will give you a little more power relatively cheap.

Michael

Thanks, I am strongly considering getting the M1 intake and trying it out. As for the headers, the problem I have is that the Eddy's have angled plugs and anything less than 2" will not allow you to put in plugs. Trust me, I have learned this the hard way and now have a set of really nice ceramic coated 1 7/8 headers I can not use, (at least with these heads, I am sure I will use somewhere else).

I will be honest on this one, I do not know the compression ratio on this motor. The bottom end was built when I bought it and even though I went through and checked the bearings years ago, I did not try to measure the specs to get the CR calculated, I have always thought the 114 octane would be a safe bet, but I might just experiment with some lower octane to see what the results are. Certainly at $11-$12/gallon I do not want to buy gas more expensive than I need!
I will put getting the CR figured out on my list of things to do. Thanks.

You'll have to find an M/1 used, they don't make them anymore. If you see one you better snag it, it took me 2 yrs to find one. Do you know if that engine has flat top pistons? Also I wouldn't even consider SS springs because the the price of Cal-tracs and matching springs are reasonable. For now clamp the front section of the springs esp the right side and better shocks on it to see if you level up your launch.

The rocker ratio option sounds like a very good idea. I may very well try that if I switch out the heads. I could go ahead and find me a set of 1.6 ratio and set the heads up with them. I have always thought this was an expensive option based on what I have seen, but I was always looking at roller rockers when I looked at this. Since my cam is a solid lift I would have to find the right set. I have seen ugly reviews of some of the sets vs others. Some like the Harland Sharp seem to be preferred, but they can get pricey. I will start to keep my eye out for a set.
How much does your cam specs change when you go from 1.5 to 1.6?

I think I know where there is an M1, so I am going to call him today and see if I can get it. I believe the pistons are flat top. They guy who was building the car initially had very good documentation, and the engine seemed very solid. Unfortunately most of the parts listed for the motor came from a Federated Auto Parts, and I have never been able to find the details by part number. The invoices were from 1996.

I would say you don't need race gas with those open chamber heads maybe a mix 50/50 of 110/93.

M1 intakes for RB blocks even for the 4500 carbs seem to pop up all the time. You shouldn't have a problem finding one. As for headers you may want to double check fitment. I know my brother ran hooker comps with no clearance problems with his Edelbrock heads on the 440.

Here is the progress and pictures from the last two night, both of which did not end until 1:30am.
We got the brakes in and installed them. That was most of Wednesday night.
Last night we ran all of the new brake lines. We installed an 18" pipe over the transmission and ran the line through it so we could keep the front passenger side line in tact and still meet NHRA rules. We bled the master cylinder. We set up the advance on the MSD distributor by changing the bushing and springs. We opted to use the blue bushing and a blue and lightweight silver spring. We will play with this more in the future I am sure. We changed the oil, and installed a new K&N oil filter. We went with Valvoline VR racing oil in 10w30. The old oil filter removal was ridiculously hard. Again, there is not anything on this car that is not stuck!

We are close to being ready to go to the track today, but not there yet. Me and the crew chief both get off work at noon, and if we can finalize a few things we can do the remaining last minute tweaks at the track. The track opens at 5:00, so we need to leave around 3:30 if we want to be there early. I will let you all know how it goes. With the changes we have made I am hoping to see the car go 7.05. We have removed at least 60 lbs. off the car, but I have never run this track so we will see what we can do.

I will post a picture of the headers on those heads when I go back to NC. Perhaps the Eddy heads your brother had were indeed the ones with straight plus vs angled. My understanding is the closed chambered Eddy heads all have the angled plugs and this is what causes the problem with the plug clearance. I tried everything and every plug I could find. Would not take even a "Shorty" plug.

the duration does not change substantially.....maybe 2 degrees longer? I don´t know for sure. It´s the increase in lift that gives more power. If you wanna know your lift number with 1.6 Rockers, take the 1.5 ratio number, divide by 1.5, then multiply by 1.6. Or use the lobe lift multiplied by 1.6.

Michael

here are good pics of 2" headers on the angled plug heads.
http://www.hughesengines.com/TechArticles/10hpmanifoldshookersupercompheadersonbigblockangle.php

are there 1-7/8" headers that use the same tubing layout as these headers?

I seriously doubt that switching rockers from 1.5 to 1.6 will do anything more than lighten your wallet. Just my opinion.