double valve spring?? roller rockers????
 

thinkin about it???? advantages or disadvantages to double springs....

and

is it 1.6 or 1.7 for stock rockers?? thinking of putting roller rockers in but I don't want to have piston/valve clearance problems.. or what size could I safely go???

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Black,84 GT,ground effects,shorty headers, 'open' dual exh.,302 HO(no pollution control crap),T5,89 ported heads,edelbrock Performer manifold, Edelbrock 2122 cam,600 Holley, high volume oil pump...

gears (4:10's) coming soon. N2O, soon to follow!!!

Go with 1.6.

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351W 89 Mustang GT Convertible