[Ian Hill]

First of, i'd just like to say i got a set of mark's performance welding stainless merg collectors recently and the workmanship was excellent. Also he was the only one out of three places i contacted that required my full cam specs - et and mph to put a set together for me, the other two said " they had something in stock that would work". Thank you for that Mark.

Secondly i have to add that i purchased a set of Schoenfeld stepped headers right out of their catologe and during testing (dyno) on a IHRA D/CM fast burn motor these headers out performed two different custom made headers by 17 and 11 horsepower. I order a second set of the same headers without the collectors and added the pref. welding merg's. We dyno'd my engine (ihra crate 350ci/340hp) yesterday and after tuning with the schoenfeld headers/ collector combo it made 455hp with over 400 ft/lbs carried from 3973rpm to 5554rpm. We changed to the schoenfeld/ perf. welding collector combo and after tuning added 2 jets sizes to the rear, took one degree off the timing and hit 474 horse carrying over 400 ft/ lbs from 4113rpm to 5944rpm and this was all on sunoco 94 octane pump gas. changing to 104 race fuel made gains to 478 horse and carried the 400 lbs to 6300 rpm without any jet changes. oh ya, it maxed out at 444ft/lbs on 94oct and 455ft/lbs on the good fuel.

so i'll take this time to thank Schoenfeld Headers, Performance Welding and Fiorravanti Custom Engine for all your help, and you guys for answering my questions.

Thanks
Ian