Originally Posted by Bench Racer (Post 240395)

Back in the 80's my brother David Jackson held the IHRA SS/2JA record for many years with a 1958 Chevy Wagon. The car was a 283 (292ci) with a 650 holley 2bbl. The carb had been reworked by TRC (I think out of Ga). The carb would flow 730 or 780 and was as quick on the 283 as a 4bbl and would turn 10.500rpm with no problem. They were not required to run any type of restrictor plate and the hot tip was a 2bbl adapter made by Braswell that was several inches tall and matched to the Holley strip dominator intake. They also made small velocity stacks for the 2bbl. The index was pretty soft on the combo and David would always qualify well if not #1. The carb was legal and was checked many times by Robert Leonard when he was the tech man. IHRA had a plexiglas guage that Robert used to check the venturi size. The 650 holley did not have any boosters in the venturi and had discharge holes drilled arount the top of the venturis, it also had a 50cc accelerator pump. It looked like a garden sprinkler when you would work the throttle linkage by hand lol. Don Jackson