18 Hammer Kit
18 Hammer Kit
Check out this page if you are looking for 18 Hammer Kit
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 DeWalt DW4KIT 2 18V NiCd 1 2 Cordless Hammer Drill 7 pieces used  US $145.00
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 Milwaukee 2605 22 M18 7 8 SDS Plus Rotary Hammer Kit US $446.44
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 Makita 18 Volt Hammer Drill LXT BHP452 kit US $189.00
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 Hitachi 18 Volt 1 2 Lith Ion Hammer Drill Torch Lite Kit US $159.90
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 HITACHI 18 Volt Li Ion 1 2 Hammer Drill Kit DV18DCL US $159.88
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 DeWALT DC212KA Cordless 7 8 18v SDS Roto Hammer Kit NEW US $424.79
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PLEASE,PLEASE,PLEASE GIVE ME A NEEDLE/JET COMBO THAT WORKS WELL ON A 355?
THE MOTOR IS A 1978 350 BORED .030 OVER. I HAVE THE XR286 COMP HYDRAULIC CAM, .490/.490 LIFT. I RUN 3.42 GEARS W/ 275/40-18 TIRES. 58CC 305 H.O. HEADS. HOLLEY STREET DOMINATOR INTAKE WITH AN EDELBROCK 1405 CARB. I HAVE THE TUNING KIT AND I'VE DONE MY BEST WITH IT. I'M CURRENTLY RUNNING THE CARB. WITH THE STOCK .100 JET AND .073 X .042 RODS. ALSO RUNNING THE ORANGE SPRING FOR 5" HG. IM RUNNING GREAT IN CRUISE MODE BUT WHEN I HAMMER IT, IT STARTS TO PING PRETTY MODERATELY. GUYS I AM SWAMPED AND WAS WONDERING IF ANYONE HAS A SIMILIAR COMBO WHO SOLVED THIS ISSUE. ANOTHER THING IS I DO HAVE A REGULATOR AND IT IS SET AT 5 PSI. PLEASE HELP. IT WOULD MEAN MORE THAN YOU CAN IMAGINE. 82 S-10 SHORT BED.
HEY JIMJAM, THANKS FOR THE REPLY. I NORMALLY RUN 93 OCTANE IN IT FOR GAS. THE PISTONS ARE CAST FLAT TOPS WITH 4 RELIEFS.
Well it would really help to know what pistons your running. This sounds like detonation caused by too much compression/cyl pressure, too low of octane fuel, too much timing
Std. 4 vr flat top pistons will range from 5 to 9cc
With 58cc that would give you 9.9:1 to 10.4:1 compression
That would be a combo that needs 93 octane fuel, limited timing, rich carb, etc etc.
Now if you have 2vr flat tops, no way its gonna run on pump fuel with 58cc heads. You will need race fuel
I think your prob is timing more so than carb jetting.
On a higher compression engine like this, you really have to watch your timing. 32-34* total. If you don't have a dail back type timing light, then that would be around 10-14* BTDC at idle with std timing light)
I ran a 1405 carb on my 10.18:1 355 but wilder combo, better heads, etc. I had to limit timing to 34* total, use an adjustable vac advance can and set it for only 8* of advance.
On my carb I set floats to 7/16" rest, 15/16" drop, pump arm in top hole, .100" prim jets, .104" sec jets, .068x.042 rods and the pink step up springs
Fuel pressure set with reg to 5.25 psi
I also couldnt run any lower than 93 octane fuel