I just finished a stainless set for a combo similar to yours. LIghter car, little milder engine. Same CID and RPM.

We used 16 ga. 2 1/8" primaries 30" long, with a 3 1/2 to 4" merge collector. Looking to help out a flat torque curve on a .90 car that goes in high gear on the stop.

Talk to Rich at Cone Engineering. Parts to build any configuration collector you want. Perfect, fabricated parts. No stamped out stuff. He can offer advice. Merge collectors very close to performance of a 100% fabricated part at a fraction of the price. Tell him I sent you.

Burns is top shelf stuff if you want to go there and have the budget. Would never recommend against them.

Last edited by CMcAllister; 12/27/21 02:30 PM.
If the results don't match the theory, change the theory.