beginningjockey's 360 to 318 swap
#62
Update: I've been tweaking the fuel system for maximum power
I first started out running 4-4.5PSI fuel pressure, then I turned it up to 5-5.5, now I've turned it up to 7PSI, seems about right, it's running a tad on the rich side, which I like because it always has plenty of fuel in the intake so if I stomp on it it doesn't lean out and it can make power faster without waiting for the carb to catch up. And, if I stomp a few times really fast I can make it smoke like a oilburner
I first started out running 4-4.5PSI fuel pressure, then I turned it up to 5-5.5, now I've turned it up to 7PSI, seems about right, it's running a tad on the rich side, which I like because it always has plenty of fuel in the intake so if I stomp on it it doesn't lean out and it can make power faster without waiting for the carb to catch up. And, if I stomp a few times really fast I can make it smoke like a oilburner
#68
His truck is putting out black smoke because every time he pumps the pedal he is putting in mass amounts of fuel via the accelerator pump. Great way to wash down the cyld walls and eat up rings. Carbs where first year shop class in school I guess they don't teach this old stuff anymore.
Last edited by merc225hp; 08-12-2013 at 01:41 PM.
#70
if you didn't have a return line then you would most likely have vapor lock issues since big blocks were more prone to vapor lock when return line was disconnected than small blocks were. your return line should T off your fuel filter by your fuel pump.