B20vtec backfires

[B20Civic92]

I got a b20 Vtec and it's a b16a head on it. The car starts up fine but when I try to rev it up it stumbles to go up in rpm and backfires and if I floor it it will just cut the car off. I checked the ignition timing on it and fixed that and made it where it don't do it as much but the car was sitting since august so could the gas be old? (that's what someone told me) or could it be that I am runnin a gsr ecu on a b16a head? Any help or anything would be great, thanks.

[jerseyef9]

it def can be old gas man run to the gas station pupm fresh 93octance and if it not tune got get it tune man make sure all your fuel lines are not crimp up also seen it happen b4 make sure your spark plugs are good also just check the basic stuff man hope i help out man

[huarahe_B20]

do you want to sell your b20? i would buy it if the price is right

[Barefoot]

check mechanical timing

[allmotorX]

Lol didn't know this was a for sale thread

[tmracing83]

^x2!!!

[Theycall_Metue]

lol

[B20Civic92]

I checked the timing with a timing light and it's perfect but now that I think about it the fuel line is a lil bent so I'll check that too, and no I don't want to sell it lol I mean I did just get it runnin lol but also does a b16a head have a map sensor? I don't think it does because if it does I really don't see where it would connect to, but thanks guys in advance

[Starrfire]

check mechanical timing

x2

[dallasb84]

your motor will run 180 out..... like timing belt.... not ignition