No fire on one and two?

[BPRC MAN]

Ok we a JR motorsports 377 and it will not fire on one and two.Its getting spark(checked) and fuel because its blowing alky out the headers.Back three make heat like they should but not one and two.Kinda stumped so any input would be great. thank you

[latemodels4life]

Low compression???

[BPRC MAN]

Going to check compression tonite.could it be a valve issue,either lash or intake hanging up letting to much fuel in?

[MasterSbilt_Racer]

Wires reversed at cap?

[latemodels4life]

It could be a hung valve or bent

[latemodels4life]

mastersbuilt I think he said it had spark in those 2 cylinder.

[MasterSbilt_Racer]

mastersbuilt I think he said it had spark in those 2 cylinder.

But at the right time?

[latemodels4life]

ok mastersbuilt,I never thought of that

[BPRC MAN]

wires are right and its a new distrib.Really starting to think its hung up or bent valve.Thank you for help.

[MQueen]

My guess is you have a valve issue with #2 cyl. and it is affecting #1, pull v/c and check.

[kraftkar7x]

Have u pulled valve cover? Had same issue only 1 cylinder finally pulled valve cover and had broken lifter