Thanks Glenn & DF on your inputs!:) Spud has answerd me on some magneto issues, so now I have solved foult nr. 3. With all these issues solved I'm optomostic on taking the "winder" faster down the track:) Last year we whent to the HAMB drags, I bought a couple of pop-off plates, one Cragar and one Weiand (say-why-and), and was thinking of useing the Weiand, and switch to burst. I thinks they have the same size.
We have made new rules, so pop-off is still leagel here:)
The plenum might not be perfect or 100% ideal, but there are some stuff we need to compromise on. We plan to have the plenum approx. 1- 1 1/2 inch high abowe the runners. Roger has the intake now for some more welding, but hope to have it back soon for some more grinding, then he could fit the plenum. We allready had the top-plate, as it acted as a spacer on the old one:)
Anyone have any idea what sparkplugs to start with? NGK BP5ES? I have allways used Champion on my gas engines.
Kjell
Sidewinder - I'd think that the NGK BP5ES plugs are a little too warm for a racing environment. Even some factory cars in Brazil were fitted with colder NGK BP6ES or even NGK BP7ES (for ethanol, with 12.3:1 compression). I personally have gone as cold as '9' on street/strip turbocharged engines. The FED currently has NGK R5672A-9 on an alky SBC 400, AFR 220 heads, with ~12.5:1 compression.