Help! Hedders for a Duster W/1 7/8" tubes on S.B. With R/T heads??

I dont know why Mopar Performance recommends such a large pipe on those crate motors but they say to use 1-7/8" headers on the 360s also.

I dont think you need that big of a pipe. I think 1-3/4" Super Comps would be a better choice. 1-7/8" tube is big enough for a 550hp big block.

Just because the dyno says it made more peak power with the big tubes doesnt mean the car will run better with them.