Thread: Electric to Mechanical fuel Pump????

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well i can say if you have a TBI they will not take a big cam the map will go nuts and run rich at idle. if any thing like the sbc need to idle a round 650 or less. i just went thru this on a sbc that the customer wanted a roller Hyd cam and with a set of v tec heads had ERSON grind a very very small hyd roller cam so every thing works. i knew this they before i ever put the cam in the block were i get my master kits did not know this they wanted to sell me a cam that wound of never worked. so if your going to cam it you may be better with a carb in this case .i like the TBI to they work great on stock stuff . you said the block has the pump hole block off plate ? i know the latter mark 6 block s did have the fule pump mount put back on the block .but may not have lobe on the cam .alot of the cams i get for the mark 6 rollers cams do not have the pump lobe