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kiwitony · 08-10-2011, 03:20 AM

Thanks guys for all your input,I'll give the diff change a miss at this stage,I'll pull the 4 barrell and run the original single 94 and see what that does.I do the same route each week so will be easy to compare.I have very High compression now because the engine machinest planed hell of my edelbrock heads,I spent two days hand sanding the domes on the heads so they wouldn't hit the pistons. Hot air chamber on manifold is working.I 'll try driving with vac guage hooked up. Point 85 5th gear about 2300 rpm at 60 mph.Cheers Tony.

08-10-2011, 03:20 AM	#8
kiwitony Senior Member Join Date: Aug 2010 Location: Whangaparaoa New Zealand Posts: 263	Re: higer ratio diff Thanks guys for all your input,I'll give the diff change a miss at this stage,I'll pull the 4 barrell and run the original single 94 and see what that does.I do the same route each week so will be easy to compare.I have very High compression now because the engine machinest planed hell of my edelbrock heads,I spent two days hand sanding the domes on the heads so they wouldn't hit the pistons. Hot air chamber on manifold is working.I 'll try driving with vac guage hooked up. Point 85 5th gear about 2300 rpm at 60 mph.Cheers Tony.