Been a while but I'm finally done upgrading the EVO. Went ahead and ported and polished the heads and had the EV27 cam installed.Got 80.5 HP and 89 tork. Might be a while before I do anything else to it. In the future I think I might put in a Mikuni 42 or 45 carb and a big sucker stage 2. For right now I'm pleased with the HP increase. Thanks for all the suggestions and help.

 

Big hearn
Are you are saying that the doind the heads and the ev27 cam gave that significant an increase to a stock evo?

 

I can't imagine that. Wait til he posts back but he'd have needed the stage 1 first, or with it. That's the breather, carb jetting and exhaust to open things up.

Stock you are constricted already and just increasing the engine's capacity won't help until it can breath.

Most people tell me that you get your biggest first bang for the buck with that stage 1. I've done it and you can really feel it.

 

Here's what works for me, so far
But I'm never happy with my bike,
says my wife!
chappy[align=center]1997 Heritage Springer Red on White[/align][align=center]One Owner [/align][align=center]Professionally Built, Bored & Stroked to 89.5:1[/align][align=center]Blueprinted and Balanced[/align][align=center]New Parts Listas of 01/01/06[/align][align=center]Labor is NOT INCLUDED in any prices.[/align]

This list is why I don't add my mod's to my sig

[left]
Part Number Parts Description Quanity Price[font=verdana][size=2]
#16854-98A Screamin’ Eagle Heads Pair 929.95
#17046-98 SE High Performance Gasket Kit 79.95
#17056-01 H-D High Performance Head Gasket Kit 24.95
#17378-98 SE Roller Rocker Arms (Jims) Set 469.95
#18568-98 SE Tappet Set (Jims) Set 259.95
#17987-98A SE Adjustable Push Rods Kit Set 99.95
#22767-98 SE Pistons 10.5:1 Pair 279.95
Truett & Osborn Torque Monster Wheels & Rods, B&B
Stroker "4 5/8 in. 1200.00
#29641-99 S E 42mm Flatside Carb (Mikuni) 1 369.95
#2005 Kuryakyn High Flo Chrome Gas Petcock 1 89.95
#29543-99 S E Air Cleaner Kit (K&N) 1 79.95
#29138-91 H-D Nostalgic Bar & Shield A/C Cover 1 45.95
#31746-98A SE Single Fire Ignition Coil 1 79.95
#2067 Summax Taylor Plug Wires (Red) Set 21.95
#31762-98A Screamin’ Eagle Single Fire Coil Cover 1 17.95
#74519-88A H-D Voltage Regulator 1 85.00
#HQ-6000 Head Quarters HQ-6000 Ignition 1 625.00
#773594 Terry Components 2.0 kw Starter 1 500.00
#22045 Terry Components Super Flex Bat Cable 1 55.00
#65989-97A New H-D Battery 1 72.95
#698-258 S&S Oil Pump w/Drive & Breather Gears 1 350.00
#62668-87T H-D Oil Dip Stick with Temp Gauge 1 27.95
#49-4587 Andrews Cam EV27 1 172.65
#3790-03 S E Performance Clutch Kit 1 384.95
#WB#10-002 White Brothers Tork Valve Set 79.95
#S-229 Sampson Tru-Dual Exhaust System 1 581.00
#HS S-148 Sampson Fishtail Mufflers 2 412.00
#HS S-149 Sampson Fishtail Straights 29" 2 288.00
#202012 2 Khrome Werks Exhaust Baffles 2 sets 85.98
#43896-99 H-D Gloss Black Headbolt Cover kit 36.95
#32584-88T H-D Classic Chrome Timer Cover 1 13.95
#52571-91 H-D Nostalgic Bar & Shield Derby Cover 1 29.95
#56622-99 H-D Chrome Handle Bars 1 59.95
#? CCI White Leather Grips Pair 89.95
#? New H-D Rear Wheel (Laced) 1 385.00
#? CCI Oval White Brake Pedal 1 15.95
#45075-96 H-D Chrome Hand Control Levers Pair 69.95
#? Iron Braid Red & Black long Fringe Pair 99.00
#? H-D Riser (FXSTS) Pair 169.95
#91968-98 H-D Script Teardrop Mirrors Pair 84.95
#45255-04 H-D Front SS Braided Brake Line 1 61.95
#56344-03 H-D SS Braided Throttle and Idle Cables 1 118.95
#38674-03 H-D SS Braided Clutch Cable 1 79.95
#69624-99A H-D Headlight Trim Ring 1 29.95
#69622-99B H-D Passing Lamp Trim Rings 2 39.95
#67074-02 H-D Performance Headlamp Bulb 1 19.95
#68450-04 H-D Auxiliary Lamp Bulb Kit 1 39.9

 

Go with the 42 flatside Mikuni, the 45 is for bigger built motors than what you've got going on.

have fun
chappy