2" tti`s in a 68 barracuda fastback, 440/505 w/ raised port alum heads, magnum force front suspention, 727 w/ cheeta shifter. bought headers 2nd hand off a guy in witchitaw, straightened tubes 1 and 3, wrapped, installed in car w/ engine already in, very tight, but no interference anywhere, after I loosened the steering column at the floor, and moved it to the left as far as it would go in the stock holes. very tite but clears everything. plugs are a *****. jfyi-----bob