Relatively heavy car needs torque and gears to get moving. The 3.91s would be my choice. Need some good rubber to help get it moving as well as sure-grip to get both wheels driving. Otherwise you will have to drive it out of the hole and feed the power as it starts moving. Don't know if this is the 350 or 375 motor but all these motors are just about out of gas at 5200-5300 RPM, especially with stock exhaust systems. They'll rev higher but you probably are losing time holding it in gear. Use the best premium you can find and set the timing to just avoid ping under load. I've never used lead additive in my engines, not really sure if it is needed. Keep us posted. Bill Huff At 4/28/201010:42 PM, mckanical-marvels@xxxxxxxxxxxxxx wrote: > > >My first car, (forty years ago), was a '64 Fury that I had dropped a 413 >engine in. I left the engine stock, including the carb. It was not an HP >engine, but that is all I know about it. I did a lot of street drag racing. >I had 3.23:1 gears. The valves/springs "floated" at 5000 rpm. No one EVER >beat me out of the hole, but toward the end of the quarter I ran out of >power and felt like I was coasting. That's where they would catch up with >me! > >In February I purchased my "K Koop". It has a 413 HP, single carb, dual >point dist., and 2.76:1 gears. I want to take it to nostalgia drag race >events. I have 3.23 and 3.91 gears on hand. >1) What would be the optimum gear ratio for the quarter mile, (using stock >diameter tires)? >2) What is the best oil or oil/additive combo? >3) What rpm's can I expect out of this engine? >4) What fuel is recommended? >5) Should I always use lead additive in the fuel? > >More questions later, as I think of them! > >Thanx, >Troy McKenzie >K Koop Koot >Meyersdale, PA > >[Non-text portions of this message have been removed] > > [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/