Hey i just got a 1974 Pontiac Grandville 455 convertible. Im wanting to putting a new carb and headers on it. I see you have essentially the same car. What do you recommend for long tubes on a stock engine? Will be swapping cams and doing some head work in the future. Just trying to wake this old girl up a bit. Any suggestions would be great. After reading a few threads it would seem you are the resident expert on this platform. Thanks in advance.

Hey tony, running the msd billet 8563?

Darb what dist are you running?

It has an old faithful cam and 305 cfm Kauffman heads no clue as to HP . maybe the 1 3/4 would be better they are what Dave suggested.

Darby there is a set of headman 35148 headers for sale in the performace forum. 1 7/8 primary, do you have any opinion of them?
John

Sounds good , let me know...

Pistons are in if you still have the torque plate, I can call and see when it could be done.

Np, I am sorry to hear that!!! Prayers for your family!!

Also spending time with my mom, end of her fight with cancer.

Sorry for taking so long to get back. I am waiting on my pistons from Ross have not heard when they will get here.