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<blockquote data-quote="broflow" data-source="post: 669759" data-attributes="member: 13575"><p>So this thread was very informative. I spent the day changing out my plugs to cooler ones with a .030 gap. I also followed the above timing info and set it at 30 total in at 2500. Had to change springs and stop in MSD distributor. I also installed a wide band O2 sensor to monitor mixture. With all this I still have a terrible detonation problem? Very hard to crank when warmed up(like it's advanced too much) </p><p></p><p>Here's my motor specs</p><p>377 small block </p><p>12to 1 compression</p><p>ported/polished 64 cc dart heads</p><p>domed pistons</p><p>MSD 6al ignition box with MSD mechanical advance distributor.</p><p>dual 425 impcos on an adaptor mounted to an 850 baseplate.</p><p></p><p>This was a strong running motor on gas. I thought by switching to propane I would have a great off-road set UP?</p><p>Any advice would be great.</p></blockquote><p></p>
[QUOTE="broflow, post: 669759, member: 13575"] So this thread was very informative. I spent the day changing out my plugs to cooler ones with a .030 gap. I also followed the above timing info and set it at 30 total in at 2500. Had to change springs and stop in MSD distributor. I also installed a wide band O2 sensor to monitor mixture. With all this I still have a terrible detonation problem? Very hard to crank when warmed up(like it's advanced too much) Here's my motor specs 377 small block 12to 1 compression ported/polished 64 cc dart heads domed pistons MSD 6al ignition box with MSD mechanical advance distributor. dual 425 impcos on an adaptor mounted to an 850 baseplate. This was a strong running motor on gas. I thought by switching to propane I would have a great off-road set UP? Any advice would be great. [/QUOTE]
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