250 HP Slant Six - No Turbo

My car weighed 3250 w/me in it when it ran those times.

My combo has been together for so long you probably can't dig up all the threads it has been posted in. It is pretty basic and easy to duplicate though.

1970 198 block bored +.065"
Forged crank kit from Car Quest
Jeffrey head with mild porting, O/S valves, springs good for .600" lift
RAS stock rebuilt rocker arms/shaft ($85 and they did not want cores back)
Stock 198 rods rebuilt by Mike w/ARP bolts
KB hyper 2.2 turbo pistons .5mm oversize
Matching rings gapped for nitrous
Clifford 300*/.558" cam (20+ years old, bought used from Mike for $50)
Clifford intake bought used off the Internet
Clifford headers bought new for my Duster, wouldn't fit so they went in the '66
Jeffrey windage tray
Johnson crank scraper off E-bay
Stock '66 pan/pickup
Autozone 5 bolt oil pump blueprinted by Doug Dutra
Dutra hardened oil pump gear
MP roller timing chain (Got 3 sets when MP discontinued them for $40 each)
Smith Brothers stock replacement pushrods
Stock Mopar electronic distributor w/advance slots welded to limit advance
MP chrome valve cover bought at swap meet for $25
Holley 600 double pumper carb
Top Gun 150 shot plate system
MSD6A-L ignition

Motor is shifted at 62-6400 RPM and has been bullet-proof with a 150 shot on it.

Not so much with a 180 shot.

See? Nothing incredibly fancy, just good basic parts.

Biggest mistake you can make with a Slant or any tiny motor is to use a poorly matched group of parts. When you start with a little motor you are already in the hole.