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Mid 12's doesn't need much to get there. I'd run a shorter cam duration than mid 240's in a hyd. Call Tim @Bullet for a good hyd cam. Low 230's .480ish 108lsa is fine for this combo and won't need anything special to make it work.You don't need to internally balance this either. Just keep it simple. Quality machine work,good valve job,etc.

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You should just about be there with what you mentioned.

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I forgot to mention that it has really restrictive 2.5" exhaust on it. The 440 picked up 3 tenths uncapped when i ran that. I have a '73 340 in it now with 8.1:1 compression not accounting for valve reliefs. It has the xe-268 cam (110 lsa, 224(?)duration at .050, .477/480 lift) but the compression is just killing it.
I was actually thinking of going with at least a 110 lsa because I know that helped with cylinder pressure on the 493 in the car in my sig by raising the cylinder pressure and such.
Will that converter be ok to reach the target et?
I will probably end up putting the HD rockers or a set of ductile ones on it.
Thanks!

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Your gonna need to up the compression

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My combo is .030 over 340,
low compression, stock rotating assembly, cast piston
63cc eddies OOTB ~ 9:1 compression
230/230 @.050 480/480 lift hydraulic
stock rockers
Air gap intake
4150 750 holley
1 5/8-3/4 step TTI's
904, 9.5" ptc 4600 flash
8 3/4 with 3.91's and a 26" tire or the new dana with 4.10's and a 27" tire.

~3500 pounds with the stereo system and such. This is a full weight street car that I drive to work, take girls on dates in ETC. Its got roughly 1,000 passes on it now not including street miles and abuse.

Best pass in the car is [Email]12.29@107.5[/Email] Normally in the 12.50 zone.

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That sounds a lot like my junk except for the heads and converter. Ran a best of 14.40s with that motor and 3.91's and a short tire. Do the new RHS heads flow about the same as the eddy's? I know i'm going to want to build a better short block at some point just for peace of mind but throwing a set of closed chamber heads on it would be cheaper.

Mike, you're an engineer right? I took thermodynamics last semester and that really opened my eyes to how compression affects performance. That's a big part of the reason for this build.

As far as the stroker, this is just my street car that I've had since I was 15. I just want to get to the point of enjoying the car again. And after selling the Fury to BobK i kinda miss a fast street car. If I want to go faster I have the Polara in my sig. i'll admit my knowledge of big blocks far outstrips my knowledge of small blocks but right now keeping the sb makes sense.

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Give it a load of total timing get it up into the 40s total with no vac advance. That engine should take close to 43-44 total and see if it runs better. That enegine is closer to 7.5 then it is to 8.5 to one if parts are stock

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Wow that's a lot of timing. Could almost make a nitro motor happy but i've heard of the Stock guys running it that high.

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That sounds a lot like my junk except for the heads and converter.

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