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Re: TBI vs PFI
Just to Clarify ,the 86-92 tip found on camaros and vetoes were batch fired,meaning two injectors at once.they didnt go to sequential fi till the lt1 or gen 3 small block Chevy came out in vetted in 92 and the camaro in 93.tpi was marginal at best.ls engines or gen 3&4.small block Chevy is sequential.there was also a CPI or central fuel injection on s series blazer in the 90s that used a central high pressure injector that fed cylinders individually through poppet valves and nylon tubing. Dfi is not new it has been around forever ,it's very efficient but in gasoline apps it's prone to carbon build up.as for carbs on ls engines ,it has been proven that a carb on a stock ls can make more power than the fi ,but you are right the drivability will always be better with fi.to each his own.i have built them both ways.ls is miles ahead of any 1st gen sbc.no matter what induction you use.
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