timing on a 400 small block

i have a 90 blazer with a 400 small block out of a 74 impala , anyone wouldnt happen to know what the marks are when doing the chain and what should the timing be set at? also is # 1 on the drivers or passanger side. and while were at it i could use the firing order

Reply to
joenashville
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The firing order is1-8-4-3-6-5-7-2 #1 is the first plug on the drivers side closest to the front. Before I tell you where to set the timing,is the motor stock?

Bill

Reply to
Bill

it has 882 heads on it

Reply to
joenashville

Back then static timing was usually TDC on a lot of GM SB's. WHat you can run it at depends a lot on the gas octane and CR ratio you are running. If you are running more than stock compression, it will not like more than TDC with 87 octane. If you are stock compression you may do best with about 4 BTDC and if you use 91 octane or better, run about 8 to 10 BTDC or so.

----------------- The SnoMan

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SnoMan

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