http://www.automotiveforums.com/vbulletin en Wed, 25 Nov 2009 21:00:25 GMT vBulletin 60 http://www.automotiveforums.com/vbulletin/images/misc/rss.jpg http://www.automotiveforums.com/vbulletin http://www.automotiveforums.com/vbulletin/showthread.php?t=970044&goto=newpost Tue, 10 Nov 2009 05:27:11 GMT just installed a 350-30over with dart 202 heads, edelbrock air gap intake, edelbrock 650 carb, large cam-specs unknown, stock hei distributor,msd 6al, 10:1 compression, approx 400hp.running 91 octane gas. my problem is spark knock at medium acceleration. total timing is at 30 deg at 3500 rpm. should i back off the timing--should i try installing a curve kit --should i be using vac advance on a motor like this with low vacuum. any advice would be greatly appreciated just installed a 350-30over with dart 202 heads, edelbrock air gap intake, edelbrock 650 carb, large cam-specs unknown, stock hei distributor,msd 6al, 10:1 compression, approx 400hp.running 91 octane gas. my problem is spark knock at medium acceleration. total timing is at 30 deg at 3500 rpm. should i back off the timing--should i try installing a curve kit --should i be using vac advance on a motor like this with low vacuum. any advice would be greatly appreciated ]]> Chevrolet matt rupert http://www.automotiveforums.com/vbulletin/showthread.php?t=970044 http://www.automotiveforums.com/vbulletin/showthread.php?t=969205&goto=newpost Fri, 30 Oct 2009 16:32:40 GMT Hey, I just got a 69 Chevelle and have a few questions. It has the 307 v8 and I would like to make the stroke longer but I'm not sure what engine to use as the donor for the crank shaft. Also it doesn't have power brakes, is there an easy way to make them powered or do I have to redo the whole brake system? Any help would be great. Thanks ]]> Chevrolet Nomad_223 http://www.automotiveforums.com/vbulletin/showthread.php?t=969205