View Full Version : spark plugs,and stall
billyd21970
02-12-2011, 07:00 PM
what is the best plug to run in my 406 with 13 to 1.bowtie heads and 205 valves and 618 roller.i have a digital 6al box.and what gap to gap them at.thanks..
fast75vega
02-12-2011, 09:18 PM
ngk and 45 gap
badrat1430
02-13-2011, 02:37 PM
ngk-9 with alc. :)
zipper06
02-13-2011, 08:14 PM
ngk-9 with alc. :)
X2
Zip.
fast75vega
02-14-2011, 04:18 AM
i run the NGK-8"s with race fuel
curtisreed
02-14-2011, 05:09 AM
ngk and 45 gap
Might be tough to run that gap though if on alcohol. I run .025" on alcohol.
Curtis
itsabird
02-14-2011, 05:20 AM
ngk 8-7 25 gap.
fast75vega
02-14-2011, 06:05 AM
ngk and 45 gap
Might be tough to run that gap though if on alcohol. I run .025" on alcohol.
Curtis
he didnt post anything about running alky :?:
curtisreed
02-14-2011, 06:40 AM
You're right he didn't, he also didn't post anything about running gas. Just didn't want him to think the .045" was a gap for anything.
Curtis
fast75vega
02-14-2011, 07:05 AM
You're right he didn't, he also didn't post anything about running gas. Just didn't want him to think the .045" was a gap for anything.
Curtis
i hear ya :wink: most guys run race fuel
curtisreed
02-14-2011, 09:08 AM
Yeah, most guys don't know any better. :lol: :lol: :lol: Just kidding, I have run methanol since I started and never messed with racing gas.
Curtis
zipper06
02-14-2011, 09:20 AM
Gas, what's Gas :?: That's what i put in my lawn mower, ATV and tow vehicle. Alcohol is what i've ran for yrs. and cost about $2.00 a gal. added the extra burn of 1.66% over gas that's still less than $4.00 a gal, VS $10.00/$12.00 racing gas, and when you tear down for a re-up the pistons and most parts still look brand new. Except for the blower motor :oops:
JMO
Zip.
badrat1430
02-14-2011, 01:17 PM
so we all agree ngk-9 .025-- .035 alc
ngk-8 .035--.045 gas :lol: :lol: :lol: :lol:
Everyone does things different ;but this will get you close :wink: That's why we are competitors :lol: :lol: :lol:
billyd21970
02-16-2011, 06:47 PM
ill be running race gas.114 most likely..
billyd21970
02-16-2011, 06:50 PM
really alc.is that much cheaper..what all do i have to do to change over?
zipper06
02-16-2011, 08:05 PM
really alc.is that much cheaper..what all do i have to do to change over?
You have to change to an alcohol carb, have a fuel pump that can be used with alcohol and possibably a larger fuel line from the tank/fuel cell.
Zip.
fla1976
02-17-2011, 01:58 AM
Remove the foam from your fuel cell if it has any.
JEFF69Z28
02-17-2011, 02:03 AM
NGK 7
jmarksdragster
02-17-2011, 09:29 AM
NGK 7
Ding, Ding, Ding.... We have a winner. On race gas in a drag SBC with your combo run 7's. I only run 8's in my 15.5 to 1 SB2 head small block. The only two reasons to run a colder plug would be in a forced induction setup, blower turbo or NOS, or maybe a step colder with methanol. Maybe.
If you have E85 in the area a much better overall choice for fuel, you will need to make sure the fuel system is capable of passing enough fuel and a carb properly modified.
billyd21970
02-25-2011, 07:29 PM
what do you have to do to run e85.i have a place that has it for 2.75 a gallon..