Dan , from my stock exh manifolds I have 2,25 down to where it turns backwards, there I went to 2.5, then a H pipe then to two 40 flowmasters, no transverse...maybe you already got all that ..but I thought I better post it...I may even have pics if you want....email me if thats the case... bsefeldt@mhinc.com I also have a rebuilt 400, not sure if bored ,but would guess so...I bought it installed in the car....I do have 5C heads milled to 88CC....1.65 rockers...holley 650 carb...think thats it...
