I have a bbc 434 and the headers that I find are stainless works and obx are up and forward and down and forward but the primaries are 2.25 into a 3.5 v band a big block puts out a lot of exhaust but I think that size wouldn't build volicty that well for being a smaller big block I was thinking 1 and 7/8 or 3/4 with a 3 inch v band into a single 88 mm or do u guys think the 2.25 will do it

 

2.25 is HUGE and spoolup is gonna suck...my 427 small block used 1.75" primaries into 2.5" crossover pipes...was plenty to make over 2000hp...went 188mph in the 1/4 pedaling due to a power wheelie.

 

Yeah 1.75 should be plenty. Cover the exhaust port and it will do fine