I'm converting my 88 Iroc 305 TPI to a 350. Initially I plan on using the stock exhaust manifolds. Are the 305 manifolds more restrictive than the 350's?

Thanks, Mike Jones

 

you should be fine use what you have, have you thought about getting headers?

 

Yes.

Seems that the Edelbrock TES headers and Y pipe seem to get the best raves around here.

My plan is to use the above with a Catco 3" convertor and a Hooker 3" catback aero system.

Just wanted to know if the 350 TPI and the 305 TPI manifolds are the same in 1988.

Thanks....