Heads & Manifold combo?
 

while i am already elbows deep into the front end of my motor (new timing chain/cover and balancer while i'm at it) i am thinking about replacing the heads and manifold if i can swing the $$$.i am looking for ideas for a manifold that would work well with some GT-40P heads.
thanks

I've gone 11.46@117+ on unported GT-40P heads with an Edelbrock Performer RPM intake system, .500" lift cam and shorty headers. The RPM has a small port cross-section that matches the P's nicely to keep the intake port velocity up.

I've been trying to sell my RPM intake system (only 8 months old) so if you're interested, email me at jchambers@kellnet.com.

I went 12.3@111 @3000 lbs, 308 rwhp with the TFS Track Intake, TFSTW's ad TFS #2 Cam for less than $1600.00

What TB, Exhaust, fuel system, MAF do you have??

i have a Holley 650cfm double pumper carb with shorties and 2 chamber flows...

I would get that performer Intake, since TFS doesn't make a Carb Intake. Your Carb is good, I would get Long Tubes, other tha that, I think you are in good shape...