Ok i got around to takin apart my grp tunned version and cleaned it all up. Once i put it all back to gether i didnt put the plug in and it turned over pretty easy and with plug in it turns over taking a lil strentgth, also this was done with pipe/header off. So my question is how can you tell when you want a new engine because when i ran o.s. mine had almost no compression and still ran strong. Also whats ur input on a pinch and who do you prefer? I heard good from speed shop and alot of locals use rayaracing and love it, but how long will the pinch last i hear a gallon then i hear people say 4 to 5 gallons?

Thanks for the help: Gage