Looking for some help on which way to go with my engine build for my car.
1970 Plymouth GTX 25.3 chassis, alterkation front suspension, Dana 60 4 link rear suspension trying to stay under 3400lbs with me in it.
So what I’ve accumulated already KB raised cam block, Stage 5 Millennium cylinder heads Cnc ported and assembled by MCH, Callies magnum xl 4.750 stroke crank, Oliver billet 7.100 rods, .750 lift solid roller cam and 426-4 Indy intake port matched to heads.
So I’m kind of on the fence about a single 4 set up and would like to run a sheet metal tunnel ram but don’t want to spin it to high.
If you had all these parts what would you do?
If I run the single 4 I was thinking about putting a single stage fogger on it.

Thanks for any and all info
Kevin

Why such a small cam?

Don't shoot me, but don't the millenium heads require a sheet metal intake? I don't know of any cast intakes that fit those, but I could be wrong.

I run the big runner Indy single 4 intake on my 605....I like it. Its fairly light, has huge runners, and fuel distribution is not bad at all.

The Indy Hemi tunnel ram suffers from a small plenum. A lot of people that do run them ad a big spacer to help. Even with efi on my old one, I did the same thing and it helped a bunch.

If I had your parts, I would build as many cubes as possible, and go with the RBRE rocker arms in a high ratio to help the cam. From there, compression is about all you have left to pick.

I’ve got intake spacers for the single 4 intake and at first when I was starting this build I had spoke to Bob at MCH and he gave me the number to a guy at comp cams.
Bob said Jeff always delt with him so he help me chose a cam but I’m open to a suggestions

Kevin

With this build as well I’d like to run EFI and E85

Kevin

Here is a pick with an SV1 carb on it...

No Gen2 HEMI should run a single 4Bbl carb. It's just wrong. LOL.

Alright alright I’ll get a sheet metal manifold built
Lol

Kevin

Just giving you a hard time Kevin. Bought any new parts for the project?

Jeff

Lol ya door skins and I’ve been thinking if I keep waiting to build a boosted Hemi for the car it may never get done.
So I figured maybe a little spray or try running KOS since now they changed rules for N/A cars can run a 33/10.5 Tire

Kevin

Hey Jeff,
Who does your machine work for you?

Kevin

I have a local guy do my block work. He's a one man shop, and swamped with work.

There’s no really good shops around here so I’ll start looking In MN.
My buddy took his block to Line Performance and another friend deals with Wheelers.
My chassis builder recommended Wheelers as well

Kevin

You have looked into a few power adder choices over time. Decide what class you would like to drive the car in or just bracket race the car or street race it. Your decision of a class will decide on parts to buy. NSS, Fast on and on all have their own rules. 3400lb I do not think will be that hard to attain with an aluminum Hemi and other things to put the X on a diet. Were in Ontario do you live, does not sound like the GTA area of Ontario were there is plenty of good shops to choose from.

I know,,,,Lend me an Eddy single plane dual quad with a pair og 800cfm Thunder series carbs and I will try it...

I’m in Northwestern Ontario, I’m 30 minutes from the Minnesota border and about 5 1/2hrs from Minneapolis.
Yes I’ve looked at a few power adders and since I’ve put the Alterkation suspension in I’ve centered the motor so it’s made some issues with Prochargers and turbos I have to basically removed inner aprons build new headers.
I was looking at blowers roots and screw, everyone I’ve spoke to said stay away from a roots since they build lots of heat and use more hp to turn.
I’d like to take it to cruise nights and bracket race as well as run KOS at BIR


Kevin

Well, did you look at the Whipple 8.3L blower? Looks like a roots, runs like a screw blower...Whipple W510R....All the good things of a roots, without all the heat.....

https://www.vividracing.com/whipple-w510r-83l-twin-screw-supercharger-p-150706668.html

No this is the first I’ve seen of the whipple blower, I’ve looked for whipple screw blowers.

Thanks
Kevin

So I just sent whipple a message asking about options for there 8.3L screw blower.
Thanks Dragula

Kevin

If you have the raised cam block you should be able to drop a 5" arm in it.